Portable desk



FIG. 1 is a perspective view of a first embodiment of a portable desk.

FIG. 2 is a front view thereof.

FIG. 3 is a back view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a right side view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is a bottom view thereof.

FIG. 8 is a perspective view of a second embodiment of the portable desk.

FIG. 9 is a front view thereof of the embodiment shown in FIG. 8.

FIG. 10 is a back view thereof of the embodiment shown in FIG. 8.

FIG. 11 is a left side view thereof of the embodiment shown in FIG. 8.

FIG. 12 is a right side view thereof of the embodiment shown in FIG. 8.

FIG. 13 is a top view thereof of the embodiment shown in FIG. 8; and,

FIG. 14 is a bottom view thereof of the embodiment shown in FIG. 8. 

CLAIM The ornamental design for a portable desk, as shown and described. 